CN107007958B - Novel foam fire engine and foam supply and conveying device - Google Patents
Novel foam fire engine and foam supply and conveying device Download PDFInfo
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- CN107007958B CN107007958B CN201710418699.7A CN201710418699A CN107007958B CN 107007958 B CN107007958 B CN 107007958B CN 201710418699 A CN201710418699 A CN 201710418699A CN 107007958 B CN107007958 B CN 107007958B
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- foam
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- pipeline
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C27/00—Fire-fighting land vehicles
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a novel foam fire fighting truck and a foam supply and conveying device, which comprises a foam pump, a foam liquid inlet pipeline and a foam liquid outlet pipeline, wherein the foam liquid inlet pipeline is communicated with a liquid suction port of the foam pump, the foam liquid outlet pipeline is communicated with a liquid outlet of the foam pump, the foam liquid inlet pipeline comprises a first foam tank communication port and a plurality of foam liquid inlet ports, the foam liquid outlet pipeline comprises a second foam tank communication port and a plurality of foam liquid outlet ports, and valves are respectively arranged on the plurality of foam liquid inlet ports, the plurality of foam liquid outlet ports, the first foam tank communication port and the second foam tank communication port. The invention not only effectively improves the self fire extinguishing performance of the foam fire fighting truck, but also greatly improves the combined operation capability with the main fighting truck, and greatly improves the utilization rate and the fire extinguishing efficiency of the stored foam liquid on the accident site.
Description
Technical Field
The invention relates to the field of fire fighting equipment, in particular to a novel foam fire fighting truck and a foam supply and conveying device additionally arranged on the basis of a traditional foam fire fighting truck.
Background
The existing foam fire fighting truck is added with one or more sets of annular pump negative pressure type or positive pressure type foam proportion mixing devices on an original truck waterway system, so that foam and water form a certain proportion, generally the proportion of the water and foam liquid is not more than 8%, and finally the foam and foam liquid are output in a form of foam mixed liquid to achieve the purpose of fire extinguishing.
Because the foam proportional mixing device is basically matched according to the rated flow of a water pump of an original vehicle, particularly for a foam fire fighting vehicle provided with the conventional positive pressure type foam proportional mixing device, the chassis power of the foam fire fighting vehicle not only needs to meet the power required by the water pump, but also needs to meet the power required by the positive pressure type foam proportional mixing device, so that the flow of foam liquid is generally small and is not enough for external conveying (the ring pump negative pressure type foam proportional mixing device does not have the capability of outputting foam stock liquid externally).
In many medium and large-scale fires, particularly petrochemical fires, a large number of foam fire trucks are needed, but due to limited sites, the number of the foam fire trucks which can really approach the fire scene for putting out a fire is very small, and a large number of the foam fire trucks can only carry out reinforcement on the periphery, so that the embarrassment situation that foam of a front truck is used up and foam stoste cannot be conveyed by a rear truck is caused, and the putting out of the fire is seriously influenced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to add a foam supply and conveying device on the basis of the existing foam fire truck, so that the foam supply and conveying device can be used as a positive pressure type foam proportion mixer for an original truck or other foam fire trucks and can also convey and transport foam stock solution in a large flow, and the foam fire trucks which do not directly participate in fighting on site are connected in series, and the stock foam stock solution in the foam tanks of the foam fire trucks is fully utilized to achieve the purpose of providing the foam stock solution for other main fire trucks, thereby not only effectively improving the self fire extinguishing performance of the novel foam fire truck, but also greatly improving the joint fighting capacity with the main fire trucks, and greatly improving the utilization rate of the stock foam stock solution and the fire extinguishing efficiency on the accident site.
To this end, the present invention provides a foam supplying and conveying apparatus, including a foam pump, a foam liquid inlet pipeline and a foam liquid outlet pipeline, wherein the foam liquid inlet pipeline is communicated with a liquid suction port of the foam pump, the foam liquid outlet pipeline is communicated with a liquid outlet of the foam pump, the foam liquid inlet pipeline includes a first foam tank communication port and a plurality of foam liquid inlet ports, the foam liquid outlet pipeline includes a second foam tank communication port and a plurality of foam liquid outlet ports, and valves are respectively disposed on the plurality of foam liquid inlet ports, the plurality of foam liquid outlet ports, the first foam tank communication port and the second foam tank communication port.
Furthermore, an unloading pipeline is arranged between the foam liquid outlet pipeline and the foam liquid inlet pipeline, and an unloading valve is arranged on the unloading pipeline.
Further, the foam supply and delivery device further comprises at least one liquid supply hose adapted to the plurality of foam liquid inlet ports, and the at least one liquid supply hose is used for sucking out foam or sucking foam from the foam tank.
Furthermore, the foam supply and delivery device also comprises at least one liquid supply hose which is matched with the foam liquid outlet ports and is used for outputting foam stock solution to a foam tank, a waterway system and other foam fire engines.
Further, the foam supplying and conveying device further comprises a controller, wherein each valve is an electric control valve, and the controller is used for controlling the on-off of each valve and the flow of the foam pump.
Further, above-mentioned a plurality of foam feed liquor interfaces divide into two sets ofly, arrange both sides about the foam pump, a plurality of foams play liquid interface also divide into two sets ofly, arranges both sides about the foam pump, first foam tank intercommunication mouth and second foam tank intercommunication mouth set up side by side the top of foam pump.
According to another aspect of the invention, a novel foam fire fighting truck is provided, which comprises a foam tank, a power source and a foam supply and delivery device as described above, wherein the foam tank is provided with an air communication valve, the first foam tank communication port and the second foam tank communication port are connected to the foam tank, and the power source is in driving connection with the foam pump.
Further, the novel foam fire engine also comprises a negative-pressure foam proportion mixer connected with the foam tank.
Further, the power source is a power takeoff, an electric motor, a hydraulic motor, a pneumatic motor or an independent engine.
Further, the power source comprises a hydraulic motor and a hydraulic speed regulation circuit, and the hydraulic speed regulation circuit comprises a proportional speed regulation valve for regulating the working flow.
Compared with the prior art, the invention has the beneficial effects that:
1. the foam liquid supply capacity of the traditional foam fire fighting truck is greatly improved, so that the foam stock solution carried by each foam fire fighting truck is fully utilized, and the fire extinguishing efficiency is greatly improved;
2. the foam stock solution can be provided for the foam fire engine per se and other foam fire engines in proportion, so that the foam fire engine has a multi-purpose function, and the working efficiency is greatly improved;
3. the foam pipelines of the non-main fighting foam fire trucks can be connected by the liquid supply hose, and simultaneously or respectively provide a large flow of foam stock solution for the main fighting foam fire trucks, so that the fire extinguishing capability of the main fighting foam fire trucks is greatly improved;
4. the foam stock solution can be provided for one or more foam fire engines through the foam tanks carried by the foam tanks and also through an external suction mode.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a foam supply and delivery device according to an embodiment of the present invention;
FIG. 2 is a schematic plan view showing a foam supplying and transporting apparatus according to another embodiment of the present invention, in which the arrangement positions of a foam inlet branch and a foam outlet branch are changed as compared with FIG. 1;
FIG. 3 is a schematic illustration of a power source according to an embodiment of the present disclosure, wherein the power source is a stand-alone engine;
FIG. 4 is a hydraulic schematic of a power source according to another embodiment of the present invention, wherein the power source is a hydraulic motor and a hydraulic governor circuit; and
fig. 5 is a schematic view of a foam can with an air communicating valve installed in accordance with an embodiment of the present invention.
Description of the reference numerals
2. A foam pump; 3. A foam tank;
4. a power transmission system; 6. A foam liquid inlet pipeline;
7. a foam liquid outlet pipeline; 8. A valve;
9. a foam liquid outlet port; 10. An unloading valve;
11. a power source; 12. A foam liquid inlet interface;
13. an air communication valve; 14. A first foam tank communication port;
15. a second foam tank communicating port; 16. A proportional speed regulating valve;
17. buffering oil supplementing valve.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1-5 illustrate some embodiments according to the invention.
With reference to fig. 1, the foam supplying and conveying apparatus of the present invention is used for a foam fire fighting truck, and includes a foam pump 2, a foam liquid inlet pipeline 6 and a foam liquid outlet pipeline 7, wherein the foam liquid inlet pipeline 6 is communicated with a liquid suction port of the foam pump 2, the foam liquid outlet pipeline 7 is communicated with a liquid outlet of the foam pump 2, the foam liquid inlet pipeline 6 includes a first foam tank communication port 14 and a plurality of foam liquid inlet ports 12, the foam liquid outlet pipeline includes a second foam tank communication port 15 and a plurality of foam liquid outlet ports 9, and has a function of connecting other foam fire fighting trucks in series, and valves 8 are respectively disposed on the plurality of foam liquid inlet ports 12, the plurality of foam liquid outlet ports 9, the first foam tank communication port 14, and the second foam tank communication port 15.
Wherein, the foam pump 2 can be a rotor pump or other volumetric pumps such as a gear pump; an unloading valve 10 is arranged between the foam liquid inlet pipeline 6 and the foam liquid outlet pipeline 7; the power of the foam pump 2 is provided by a power source 11, and the power source 11 can be any power device such as a power takeoff, an electric motor, a hydraulic motor, a pneumatic motor and a stand-alone engine.
Preferably, above-mentioned a plurality of foam inlet ports 12 divide into two sets ofly, arrange the foam pump 2 left and right sides, a plurality of foams goes out liquid interface 9 also divide into two sets ofly, arranges the foam pump 2 left and right sides, first foam tank intercommunication mouth 14 and second foam tank intercommunication mouth 15 set up side by side the top of foam pump 2.
In one embodiment, each valve 8 is a manual valve; in another embodiment, the valve 8 is an electric control valve, and a controller is arranged to control the flow of the foam pump 2 and the opening and closing of each valve 8 according to the liquid outlet mode, so as to control the liquid outlet mode, and achieve the purpose that the novel foam fire truck replenishes liquid to a foam tank allocated by the fire truck or supplies liquid to other main combat vehicles.
In one embodiment, as shown in fig. 5, an original negative pressure foam proportioner is retained on the basis of an existing foam fire fighting truck, and a set of the foam supply and delivery device is added, wherein a foam liquid inlet pipeline 6 and a foam liquid outlet pipeline 7 are respectively arranged on two sides of an inlet and an outlet of a foam pump 2 and are respectively connected with a foam tank of the novel foam fire fighting truck; in another embodiment, an original foam proportioning mixer (positive and negative pressure type) is eliminated on the basis of the existing foam fire fighting truck, and a set of foam supply and conveying device is added.
In order to meet various requirements and ensure structural diversity, applicability and reliability, the power source 11 for driving the foam pump 2 may be any power device such as a power takeoff, an electric motor, a hydraulic motor, a pneumatic motor, an independent engine, and the like. In one embodiment, as shown in FIG. 3, the drive portion of the foam pump 2 is coupled to a power source 11 via a drivetrain 4, where the power source 11 is a self-contained engine, such as a gas or oil-fired engine. In another embodiment, as shown in fig. 4, the power source includes a hydraulic motor and a hydraulic speed regulation circuit, the hydraulic speed regulation circuit includes an oil tank, an oil pump, an overflow valve, a proportional speed regulation valve 16, a reversing valve, and a buffer oil-filling valve 17, wherein the buffer oil-filling valve 17 is connected in parallel to the oil inlet and the oil outlet of the hydraulic motor. The rotating speed of the hydraulic motor is controlled by adjusting the proportional speed regulating valve 16, and further the flow of the foam pump is controlled.
In one embodiment, as shown in fig. 5, an air communication valve 13 is added to the original foam tank 3, when the foam is sucked from the foam tank, the pressure in the foam tank decreases and negative pressure is generated to form vacuum, and in order to avoid damage to the foam tank, the air communication valve 13 is automatically opened to balance the pressure of the foam tank with the external air; when foam is injected into the foam tank, the pressure inside the foam tank is increased, and in order to prevent the foam tank from being damaged, the air communication valve 13 is automatically opened, so that the air pressure of the foam tank and the external air is balanced.
In one embodiment, the foam intake line 6 may draw foam out or from a foam tank. The foam liquid outlet pipeline 7 can respectively output foam stock solution to a foam tank, a waterway system and other foam fire engines. For this purpose, several liquid supply hoses are provided to accommodate a plurality of foam inlet ports 12 and a plurality of foam outlet ports 9, respectively.
The invention can greatly improve the foam liquid suction and supply capacity of the foam fire fighting truck (the traditional foam fire fighting truck can only suck the foam stock solution through the foam liquid suction port of the foam proportional mixer arranged on the truck, and the sucked foam solution can only directly participate in the circulation of the fire pump to form foam mixed solution, but can not inject the foam solution into the foam tank of the fire pump), and add the liquid supply capacity of the foam fire fighting truck to other main fighting trucks (according to the flow of the foam pump arranged on the novel foam fire fighting truck, the foam stock solution can be simultaneously provided for one or more main fighting trucks), and the foam fire fighting trucks which do not directly participate in fighting on site can be connected in series, thereby effectively utilizing the stock foam stock solution in the foam tanks of the foam fire fighting trucks. Through the measures, the fire extinguishing performance and the use reliability of the novel foam fire fighting truck are effectively improved, the combined operation capacity with a main fighting truck is greatly improved, the utilization rate of the stored foam stock solution on the accident site is effectively improved, the working time for transporting the foam solution is shortened, and the fire extinguishing efficiency is greatly improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The foam supply and conveying device is characterized by comprising a foam pump (2), a foam liquid inlet pipeline (6) and a foam liquid outlet pipeline (7), wherein the foam liquid inlet pipeline (6) is communicated with a liquid suction port of the foam pump (2), the foam liquid outlet pipeline (7) is communicated with a liquid outlet of the foam pump (2), the foam liquid inlet pipeline (6) comprises a first foam tank communication port and a plurality of foam liquid inlet interfaces (12), the foam liquid outlet pipeline (7) comprises a second foam tank communication port and a plurality of foam liquid outlet interfaces (9), and valves (8) are respectively arranged on the plurality of foam liquid inlet interfaces (12), the plurality of foam liquid outlet interfaces (9), the first foam tank communication port and the second foam tank communication port;
an unloading pipeline is arranged between the foam liquid outlet pipeline (7) and the foam liquid inlet pipeline (6), and an unloading valve (10) is arranged on the unloading pipeline;
the foam liquid inlet ports (12) are matched with at least one liquid supply hose for sucking foam outside or sucking foam from a foam tank;
the foam fire fighting truck also comprises at least one liquid supply hose which is matched with the foam liquid outlet interfaces (9) and is used for outputting foam stock solution to a foam tank, a waterway system and other foam fire fighting trucks.
2. Foam feeding and delivery unit according to claim 1, further comprising a controller, wherein each valve (8) is an electrically controlled valve, and wherein the controller is adapted to control the opening and closing of each valve (8) and the flow rate of the foam pump (2).
3. The foam supplying and conveying apparatus according to claim 1, wherein the plurality of foam inlet ports are divided into two groups and arranged on both left and right sides of the foam pump, the plurality of foam outlet ports (9) are also divided into two groups and arranged on both left and right sides of the foam pump, and the first foam tank communication port and the second foam tank communication port are arranged side by side above the top of the foam pump.
4. A novel foam fire fighting truck, comprising a foam tank, characterized by further comprising a power source (11) and a foam supply and delivery device according to any one of claims 1 to 3, wherein the foam tank is provided with an air communication valve (13), wherein the first and second foam tank communication ports are connected to the foam tank, and the power source (11) is in driving connection with the foam pump (2).
5. The novel foam fire fighting vehicle of claim 4, further comprising a negative pressure foam proportioner connected to the foam tank.
6. The novel foam fire engine of claim 4, wherein the power source is a power takeoff, an electric motor, a hydraulic motor, a pneumatic motor, or a stand-alone engine.
7. The novel foam fire fighting vehicle of claim 4, wherein the power source comprises a hydraulic motor and a hydraulic governor circuit, the hydraulic governor circuit including a proportional governor valve for regulating the flow of work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710418699.7A CN107007958B (en) | 2017-06-06 | 2017-06-06 | Novel foam fire engine and foam supply and conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710418699.7A CN107007958B (en) | 2017-06-06 | 2017-06-06 | Novel foam fire engine and foam supply and conveying device |
Publications (2)
| Publication Number | Publication Date |
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| CN107007958A CN107007958A (en) | 2017-08-04 |
| CN107007958B true CN107007958B (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710418699.7A Active CN107007958B (en) | 2017-06-06 | 2017-06-06 | Novel foam fire engine and foam supply and conveying device |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107982828B (en) * | 2018-01-08 | 2022-12-09 | 北京中卓时代消防装备科技有限公司 | Foam mixing device of foam liquid supply vehicle and control method thereof |
| CN108619645B (en) * | 2018-05-04 | 2023-06-23 | 捷达消防科技（苏州）股份有限公司 | Foam fire truck with uninterrupted liquid supply function |
| CN108525170B (en) * | 2018-06-07 | 2024-02-02 | 明光浩淼安防科技股份公司 | Full-automatic proportional distribution liquid conveying device |
| CN109381829A (en) * | 2018-11-07 | 2019-02-26 | 南京德沃克自动化有限公司 | The anti-frothing foam liquid conveying equipment of multichannel |
| CN109939398B (en) * | 2019-04-09 | 2023-12-22 | 捷达消防科技（苏州）股份有限公司 | Automatic liquid suction device of liquid supply fire truck |
| CN111228699B (en) * | 2020-03-03 | 2024-09-13 | 捷达消防科技（苏州）股份有限公司 | Foam recovery device and foam fire truck equipped with same |
| CN113368722B (en) * | 2021-07-11 | 2022-11-29 | 张勤 | Medical liquid medicine mixing and conveying device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201783114U (en) * | 2010-09-16 | 2011-04-06 | 福建天广消防科技股份有限公司 | Balanced proportioning device |
| CN202020816U (en) * | 2010-12-02 | 2011-11-02 | 徐州重型机械有限公司 | Elevating fire truck and foam suction source control device of elevating fire truck |
| CN102716563A (en) * | 2012-06-28 | 2012-10-10 | 新兴重工湖北三六一一机械有限公司 | Fire fighting foam liquid remote transportation and transfer method and transportation and transfer system |
| KR101334367B1 (en) * | 2012-08-09 | 2013-11-29 | 주식회사 나인테코 | Fire-fighting foam chemical mixer system for fire truck |
| CN103585728A (en) * | 2013-11-28 | 2014-02-19 | 四川森田消防装备制造有限公司 | Positive pressure type foam proportion mixing system |
| JP2014050546A (en) * | 2012-09-06 | 2014-03-20 | Nohmi Bosai Ltd | Foam fire-extinguishing facility |
| CN203842223U (en) * | 2014-04-15 | 2014-09-24 | 上海格拉曼国际消防装备有限公司 | Fire fighting truck with foam-fire-fighting and foam-liquid-feeding converting function |
| CN204637382U (en) * | 2015-02-03 | 2015-09-16 | 江苏振翔车辆装备股份有限公司 | Class A foam fire fighting truck inhales foaming system outward |
| CN204745424U (en) * | 2015-06-04 | 2015-11-11 | 上海智密技术工程研究所有限公司 | Foam extinguishing device |
| CN206867544U (en) * | 2017-06-06 | 2018-01-12 | 明光浩淼安防科技股份公司 | A kind of novel foam fire fighting truck and foam supply and conveying device |
-
2017
- 2017-06-06 CN CN201710418699.7A patent/CN107007958B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201783114U (en) * | 2010-09-16 | 2011-04-06 | 福建天广消防科技股份有限公司 | Balanced proportioning device |
| CN202020816U (en) * | 2010-12-02 | 2011-11-02 | 徐州重型机械有限公司 | Elevating fire truck and foam suction source control device of elevating fire truck |
| CN102716563A (en) * | 2012-06-28 | 2012-10-10 | 新兴重工湖北三六一一机械有限公司 | Fire fighting foam liquid remote transportation and transfer method and transportation and transfer system |
| KR101334367B1 (en) * | 2012-08-09 | 2013-11-29 | 주식회사 나인테코 | Fire-fighting foam chemical mixer system for fire truck |
| JP2014050546A (en) * | 2012-09-06 | 2014-03-20 | Nohmi Bosai Ltd | Foam fire-extinguishing facility |
| CN103585728A (en) * | 2013-11-28 | 2014-02-19 | 四川森田消防装备制造有限公司 | Positive pressure type foam proportion mixing system |
| CN203842223U (en) * | 2014-04-15 | 2014-09-24 | 上海格拉曼国际消防装备有限公司 | Fire fighting truck with foam-fire-fighting and foam-liquid-feeding converting function |
| CN204637382U (en) * | 2015-02-03 | 2015-09-16 | 江苏振翔车辆装备股份有限公司 | Class A foam fire fighting truck inhales foaming system outward |
| CN204745424U (en) * | 2015-06-04 | 2015-11-11 | 上海智密技术工程研究所有限公司 | Foam extinguishing device |
| CN206867544U (en) * | 2017-06-06 | 2018-01-12 | 明光浩淼安防科技股份公司 | A kind of novel foam fire fighting truck and foam supply and conveying device |
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| CN107007958A (en) | 2017-08-04 |
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